AJ:I remember reading about how small the contact area of tire actually is in Auto Motor Sport many decades ago. This is why RC is always so concerned about the correct OEM N01 or factory spec tire fitment. I have come around to this thinking now as well and specifically specify N01 tires for my Porsche and R01 tires for my R8. We are speed controlled in Canada but there is something about having best contact area you can get.
I give you two examples:
PZero (Shelby GT500): Wanted to have this tire for my former Mustang GT500 Shelby (2014), tuned to around 760 hp). Stock Vmax was already 322 kph. Car came standard with some sorts of semi-slicks Goodyear, which were pretty bad in rain and during cold temperatures. Pirelli issued a certificate for my car, limiting the top speed to the stock Vmax of 322 kph but under one condition only: They asked for 3.4(!) bar tire pressure in all four tires. With a tire pressure of 3.4 bar, the car was undriveable, not only at lower speeds but especially at higher speeds over 200 kph. Like driving on raw eggs. The only driveable tire pressure was around 2.6 bar, it was not perfect (perfect was 2.4 bar). According to Pirelli, driving with a tire pressure of 2.6 bar, the top speed had to be limited to 260 kph.
Now the "fun" part: Many Shelby GT500 drivers I knew drove the same PZero, even with tuned cars (and most of them do easily close to 340 kph ) and used the 2.6 bar tire pressure. Insane to ignore a tire manufacturers recommendation.
Michelin Cup 2 R01 (Audi R8 V10 Plus): Optional tire which comes with the Audi Racing rims, it can also be ordered without the rims. Standard tire was a PZero R0 (I think, I do not remember anymore). The switch to the Cup 2 R01 improved the dry performance but not as much as I expected. It was surprisingly good in the wet, which was something Audi had done with their own "mixture" to keep the tire safe in the wet. The difference between the Audi version of the Cup 2 and the standard Cup 2 was a different one though: The sidewalls of the Cup 2. They were stiffer in the rear because of the extra weight of the R8 engine and the mid engined setup. I talked to a Michelin engineer who was there to promote these tires. He warned me of using standard Cup 2 instead.
If people think that the manufacturer "ratings" are just a marketing ploy, they are wrong. They aren't. If you ever have the chance to talk to a car engineer from Porsche, Lamborghini or even McLaren, do it and talk tires. You'd be surprised.
This is the new PZero Corsa PCZ4 L1 tire set I just received for my Performante. Car was originally equipped with the L.
The new Evo uses PZero PZ4 L, not PZero Corsa.
The new Corsa L1 is supposed to be very close to the Trofeo R but with highly improved wet capabilities. A new Trofeo R is apparently in the marking as well.
I am so curious how good or how bad this new tire is. Will get it installed while I enjoy studying the STO.
RC (Germany) - Rennteam Editor Lamborghini Huracan Performante (2019), Mercedes GLC63 S AMG (2020), Mercedes C63 S AMG Cab (2019), Jeep Grand Cherokee Trackhawk (2019 EU)
May 4, 2021 2:50:08 PM
Carlos from Spain:I like the look of the 992GT3 overall, but the back needs to be completely redone in the facelift, it's a mess
Then it needs a buttlift, not a facelift
18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Whoopsy:Grant:Carlos from Spain:I like the look of the 992GT3 overall, but the back needs to be completely redone in the facelift, it's a mess
Then it needs a buttlift, not a facelift
So that means we need a Brazilian tuner then!
RC (Germany) - Rennteam Editor Lamborghini Huracan Performante (2019), Mercedes GLC63 S AMG (2020), Mercedes C63 S AMG Cab (2019), Jeep Grand Cherokee Trackhawk (2019 EU)
May 5, 2021 8:46:00 AM
Boyko23:Sport Auto NR time 7,04:
Porsche 992 GT3 looking good on track...
Video Link: https://www.youtube.com/watch?v=MfODpuwFPPs
May 5, 2021 12:30:53 PM
Not too shabby I guess given the car looks like it was on the standard Cup2 (looks like 210 treadwear?) and SportAuto times typically are a little slower than factory times as you would expect (although with the same driver Christian always incredibly consistent and quick!).
I believe sportAuto 991.2 GT3RS time was 7.06 so this makes sense as the factory times are 1-2 seconds faster than the last RS with the same distance.
SportAuto 991.1 Turbo S times 7.17 etc
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2017 991.2 GT3 Manual, 2017 Alfa Romeo Giulia QV, 2017 Macan S (Petrol)
Sport Auto:
..........................Porsche 991.2 GT2 RS: 6:58.28 (Cup2 R)
.....................................Ferrari 488 Pista: 7:00.03 (Cup2 R)
....................................Porsche 992 GT3: 7:04.74 (Cup2 R) ************* 992 GT3 **************
..........................Porsche 991.2 GT3 RS: 7:05.41 (Cup2 R)
......................Mercedes-AMG GT R Pro: 7:06.60 (Cup2 ZP)
...Lamborghini Huracán Performante: 7:07.99 (Trofeo R)
..........................................McLaren 720S: 7:08.34 (P Zero Corsa)
........................................McLaren 600LT: 7:08.82 (Trofeo R)
Porsche 991 GT3 RS Manthey-Racing: 7:09.59 (Cup2 N0)
...............................Mercedes-AMG GT R: 7:10.92
..................Chevrolet Corvette Z06 (C7): 7:13.90
...........................Porsche 991.2 Turbo S: 7:17.11
..................................Porsche 991.2 GT3: 7:18.20 ********************* 991.2 GT3 ***************
.........................................Ferrari 488 GTB: 7:21.63
...................Porsche 991.2 Carrera GTS: 7:23.77
..............................Ferrari 812 Superfast: 7:27.48
macca993:Not too shabby I guess given the car looks like it was on the standard Cup2 (looks like 210 treadwear?) and SportAuto times typically are a little slower than factory times as you would expect (although with the same driver Christian always incredibly consistent and quick!).
I believe sportAuto 991.2 GT3RS time was 7.06 so this makes sense as the factory times are 1-2 seconds faster than the last RS with the same distance.
SportAuto 991.1 Turbo S times 7.17 etc
Tyre: Michelin Pilot Sport Cup 2 R
Gnil:Grant:Basically 991 RS pace, available with Manual, for less money than 991 RS...
Exactly as it has been with the previous generations
But... an RS has a look that kills , and feels more raw
Except 991.1 (PDK only and wasn't nearly the discount from the 997 3.8RS as the 992 is from the 991.2 RS)...
The 992 GT3 RS is going to be a monster. How is the 992. GT3 gonna beat that?
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18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
May 5, 2021 6:34:10 PM
Grant:Gnil:Grant:Basically 991 RS pace, available with Manual, for less money than 991 RS...
Exactly as it has been with the previous generations
But... an RS has a look that kills , and feels more raw
Except 991.1 (PDK only and wasn't nearly the discount from the 997 3.8RS as the 992 is from the 991.2 RS)...
The 992 GT3 RS is going to be a monster. How is the 992. GT3 gonna beat that?
--
18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
Hybrid?
May 5, 2021 8:11:52 PM
Porsche 992 GT3 looking good on track...Video Link: https://www.youtube.com/watch?v=MfODpuwFPPs
A bit more commentary on the Porsche 992 GT3 track performance...
Video Link: https://www.youtube.com/watch?v=lreMSpRVt9g
May 5, 2021 9:33:52 PM
Gnil:Grant:Basically 991 RS pace, available with Manual, for less money than 991 RS...
Exactly as it has been with the previous generations
But... an RS has a look that kills , and feels more raw
That's not true! Your RS felt so composed around the NS it actually was a more "comfy ride" than my regular GT3 imo!
1969 Mercedes-Benz 300SEL 6.3 / 2018 Mercedes-AMG E63 S / 2020 Ferrari 812SF
Grant. You can use the auto translate on youtube and choose english. Its very interesting. He basically compares it to the GT2RS and last gen GT3 and RS and tell you why its so much better on the track. The new front suspension and the rear suspension calibration have now totally changed the stability, turn in speed and cornering G force in a corner giving way more precision and confidence and meaning that there is a wider window for correction without loosing pace. without sounding too biased he is basically gushing about the car saying that in the four laps he was allowed it was a big handling step up on all that had gone before and despite the modest power output was one of the best cars ever at the Ring. I think his comments were much in line with Jorg but probably mean more because he doesnt work for the factory. He said that even a good amature driver will find significant time improvements because of the confidence on turn in and the ability to carry stable speed through corner and get on gas early (as rear now rotates quicker with improved front end). Cant wait for his hokenhiem lap as Im sure it will be very low 140s. It will be quicker than GT32RS and GT3RS I think....
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2017 991.2 GT3 Manual, 2017 Alfa Romeo Giulia QV, 2017 Macan S (Petrol)
Grant:Gnil:Grant:Basically 991 RS pace, available with Manual, for less money than 991 RS...
Exactly as it has been with the previous generations
But... an RS has a look that kills , and feels more raw
Except 991.1 (PDK only and wasn't nearly the discount from the 997 3.8RS as the 992 is from the 991.2 RS)...
The 992 GT3 RS is going to be a monster. How is the 992. GT3 gonna beat that?
--
18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi
It will become more and more difficult to beat the previous generation. Maybe that's why they are making the new RS more extreme. To really part it from the GT3 in terms of driving sensations.
I still think if the GT3 992.2 become hybrid, it will be as fast as 992 RS , or very close.
964 Carrera 4 -- 997.2 C2S , -20mm -- 991.2 GT3 RS
Porker:Gnil:Grant:Basically 991 RS pace, available with Manual, for less money than 991 RS...
Exactly as it has been with the previous generations
But... an RS has a look that kills , and feels more raw
That's not true! Your RS felt so composed around the NS it actually was a more "comfy ride" than my regular GT3 imo!
You are being misled by the sound of your exhaust + manual and the fact that you drive your GT3 like you stole it and you drove my RS like nurturing a baby Try a stock GT3.2 PDK and then try a stock GT3.2 RS . The RS is noisier, drive trains more raw.
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964 Carrera 4 -- 997.2 C2S , -20mm -- 991.2 GT3 RS
May 6, 2021 9:31:46 AM